Update (2016 May 28th):@Xon has taken over this @Daniel Hood's add-on. This product is now available for purchase again. For more information read this thread.
About:
This add-on sends out an email whenever a new user registers at your forum.
It is especially useful when you manually approve all new registrations, but also comes in handy in screening out spammers as the email provides you with handy information, allowing you to quickly decide whether you need to further monitor this user.

Features:

Requires XenForo +1.2.x

No branding copyright text. No need to pay extra for a “branding free” version of this add-on.

Receive an email when:

New registration

New registration which has gone into the approval queue

The email has been confirmed

New registration and on the email has been confirmed

Each email includes the user name, email address, and IP address.

Option to include the Question & Answer CAPTCHA when enabled.

Option to include the User Agent information (in most cases this will be the user's operating system and browser).

Links to both the user's profile page and ACP edit page.

IP address links to the IP Information URL you have set in the ACP (usually whatismyipaddress.com)

Recent Updates

Recent Reviews

I've been using this since Syndol was developing it and good to see that Xon has taken over maintaining things as the support is top notch. I manually approve all new members and this add-on has made keeping track of sign ups so much easier.

I got this addon for free when we purchased Bookmarks and Thread Bans during Syndol's addon sale and I must say it is extremely useful to have.

We run a semi large RP site but we don't get registerations every waking moment due to our niche. So it's really nice to be able to know when someone registers and to greet them to the site and make sure that they are a real person.

I recommend this addon and all of the other addons Syndol has made, they are extremely important to our setup on our site and I'm sure you could find a use for them :)!